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Internet Explorer 11 (IE11) is the eleventh, final, and now deprecated version of the
Internet Explorer Internet Explorer (formerly Microsoft Internet Explorer and Windows Internet Explorer, commonly abbreviated IE or MSIE) is a series of graphical web browsers developed by Microsoft which was used in the Windows line of operating systems ( ...
web browser A web browser is application software for accessing websites. When a user requests a web page from a particular website, the browser retrieves its files from a web server and then displays the page on the user's screen. Browsers are used o ...
. It was initially included in the release of Windows 8.1, Windows RT 8.1 and
Windows Server 2012 R2 Windows Server 2012 R2, codenamed "Windows Server 8.1" or "Windows Server Blue", is the seventh version of the Windows Server operating system by Microsoft, as part of the Windows NT family of operating systems. It was unveiled on June 3, 2013 a ...
on October 17, 2013, and was later released for
Windows 7 Windows 7 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on July 22, 2009, and became generally available on October 22, 2009. It is the successor to Windows Vista, released nearly ...
and
Windows Server 2008 R2 Windows Server 2008 R2 is the fifth version of the Windows Server operating system produced by Microsoft and released as part of the Windows NT family of operating systems. It was released to manufacturing on July 22, 2009, and became generall ...
on November 7, 2013. It is the successor to
Internet Explorer 10 Internet Explorer 10 (IE10) is the tenth, and by now, discontinued, version of the Internet Explorer web browser and the successor to Internet Explorer 9, released by Microsoft on September 4, 2012, shortly after the completion of Windows Serv ...
, released the previous year, and was the original, default browser in Windows 8.1 and Windows Server 2012 R2, before
Microsoft Edge Microsoft Edge is a proprietary, cross-platform web browser created by Microsoft. It was first released in 2015 as part of Windows 10 and Xbox One and later ported to other platforms as a fork of Google's Chromium open-source project: Android ...
was introduced. Internet Explorer 11 was also included in the release of
Windows 10 Windows 10 is a major release of Microsoft's Windows NT operating system. It is the direct successor to Windows 8.1, which was released nearly two years earlier. It was released to manufacturing on July 15, 2015, and later to retail on J ...
on July 29, 2015, as well as in
Windows Server 2016 Windows Server 2016 is the eighth release of the Windows Server Server (computing), server operating system developed by Microsoft as part of the Windows NT family of operating systems. It was developed concurrently with Windows 10 and is the su ...
and
Windows Server 2019 Windows Server 2019 is the ninth version of the Windows Server operating system by Microsoft, as part of the Windows NT family of operating systems. It is the second version of the server operating system based on the Windows 10 platform, after ...
. On April 16, 2019, Internet Explorer 11 was made available to
Windows Server 2012 Windows Server 2012, codenamed "Windows Server 8", is the sixth version of the Windows Server operating system by Microsoft, as part of the Windows NT family of operating systems. It is the server version of Windows based on Windows 8 and succe ...
and
Windows Embedded 8 Standard Windows IoT, formerly Windows Embedded, is a family of operating systems from Microsoft designed for use in embedded systems. Microsoft currently has three different subfamilies of operating systems for embedded devices targeting a wide market, ...
, the only still supported edition of
Windows 8 Windows 8 is a major release of the Windows NT operating system developed by Microsoft. It was released to manufacturing on August 1, 2012; it was subsequently made available for download via MSDN and TechNet on August 15, 2012, and later to ...
as the final expansion of Internet Explorer 11 availability. Internet Explorer 11, like its predecessor, IE 10, is not available for
Windows Vista Windows Vista is a major release of the Windows NT operating system developed by Microsoft. It was the direct successor to Windows XP, which was released five years before, at the time being the longest time span between successive releases of ...
,
Windows Server 2008 Windows Server 2008 is the fourth release of the Windows Server operating system produced by Microsoft as part of the Windows NT family of the operating systems. It was released to manufacturing on February 4, 2008, and generally to retail on F ...
and earlier versions of Windows and Windows Server. On January 12, 2016, Microsoft adjusted their product lifecycle policies to only support the most recent version of Internet Explorer offered for any given version of Windows. Support for Internet Explorer 11, now regarded as an "OS component", is bound to the version of the Windows it is installed on. Thus, Microsoft provides updates only to currently supported versions of Windows. This includes Windows 7 SP1 (with ESU), Windows 8.1, LTSC and LTSB editions of Windows 10, and server editions of Windows 10, among others, which will continue to receive IE11 updates until their respective end-of-support dates. The exception to this is the Windows 10 Semi-Annual Channel (SAC). For SAC versions of Windows 10, Internet Explorer 11 support ended on June 15, 2022, and Internet Explorer will be disabled on February 14, 2023. ''IE Mode'', a feature of Microsoft Edge, enables Edge to display web pages using Internet Explorer 11's
Trident A trident is a three- pronged spear. It is used for spear fishing and historically as a polearm. The trident is the weapon of Poseidon, or Neptune, the God of the Sea in classical mythology. The trident may occasionally be held by other mari ...
layout engine and other core components. Through IE Mode, the underlying technology of Internet Explorer 11 partially exists on versions of Windows that do not support IE11 as a proper application, including
Windows 11 Windows 11 is the latest major release of Microsoft's Windows NT operating system, released in October 2021. It is a free upgrade to its predecessor, Windows 10 (2015), and is available for any Windows 10 devices that meet the new Windows 11 ...
, Windows Server Insider Build 22463 and Windows Server Insider Build 25110. Microsoft has announced support for IE Mode through at least 2029, with a one year advance notice prior to retiring this variant of IE11.


Changes

IE11 features redesigned developer tools, support for
WebGL WebGL (Short for Web Graphics Library) is a JavaScript API for rendering interactive 2D and 3D graphics within any compatible web browser without the use of plug-ins. WebGL is fully integrated with other web standards, allowing GPU-accelera ...
, enhanced scaling for high DPI screens, prerender and prefetch. After launch IE11 got support for
HTTP/2 HTTP/2 (originally named HTTP/2.0) is a major revision of the HTTP network protocol used by the World Wide Web. It was derived from the earlier experimental SPDY protocol, originally developed by Google. HTTP/2 was developed by the HTTP Working ...
. In addition, IE11 supports Full Screen and Orientation APIs, CSS border image support, JavaScript enhancements, DOM mutation observers, Web Cryptography API, video text track support, encrypted media support and an improved HTML editor. IE11 uses Transport Layer Security v1.2 as the default protocol for secure connections and deprecates
RC4 In cryptography, RC4 (Rivest Cipher 4, also known as ARC4 or ARCFOUR, meaning Alleged RC4, see below) is a stream cipher. While it is remarkable for its simplicity and speed in software, multiple vulnerabilities have been discovered in RC4, ren ...
cipher suite A cipher suite is a set of algorithms that help secure a network connection. Suites typically use Transport Layer Security (TLS) or its now-deprecated predecessor Secure Socket Layer (SSL). The set of algorithms that cipher suites usually contain ...
. The "document mode" feature in the developer toolset (F12) allows simulating the rendering behaviour of Internet Explorer versions 5 to 10 to facilitate testing pages for compatibility. Internet Explorer 11 for
Windows RT Windows RT is a mobile operating system developed by Microsoft. It is a version of Windows 8 or Windows 8.1 built for the 32-bit ARM architecture (ARMv7). First unveiled in January 2011 at Consumer Electronics Show, the Windows RT 8 operat ...
does not support
Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mos ...
and other add-ons.


Removed features

* IE11 has
deprecated In several fields, especially computing, deprecation is the discouragement of use of some terminology, feature, design, or practice, typically because it has been superseded or is no longer considered efficient or safe, without completely removing ...
document.all, meaning that code that checks for its presence will not detect it, but code that actually uses it will continue to work. Additionally, the attachEvent proprietary API has been removed. * Quick Tabs (CTRL+Q) * Work Offline command removed from File menu * Drag and drop of selected content from IE to other programs like Word or WordPad * Use large icons for command buttons * Some Group Policy settings are no longer supported. * Ability to view all cookies at once via Developer Tools * Ability to disable
tabbed browsing In interface design, a tab is a graphical user interface object that allows multiple documents or panels to be contained within a single window, using tabs as a navigational widget for switching between sets of documents. It is an interface s ...
* autocomplete="off" for input type="password"


Added features

* KB3058515 released on June 9, 2015 added
HTTP Strict Transport Security HTTP Strict Transport Security (HSTS) is a policy mechanism that helps to protect websites against man-in-the-middle attacks such as protocol downgrade attacks and cookie hijacking. It allows web servers to declare that web browsers (or other ...
support to IE 11. * KB3139929 bundles a patch which adds advertising of
Windows 10 Windows 10 is a major release of Microsoft's Windows NT operating system. It is the direct successor to Windows 8.1, which was released nearly two years earlier. It was released to manufacturing on July 15, 2015, and later to retail on J ...
upgrade offer to the new tab page.


Performance

In a November 2013 review by SitePoint, IE11 scored better than Google Chrome 30 and
Firefox Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. It uses the Gecko rendering engine to display web pages, which implements current ...
26 in
WebKit WebKit is a browser engine developed by Apple and primarily used in its Safari web browser, as well as on the iOS and iPadOS version of any web browser. WebKit is also used by the BlackBerry Browser, PlayStation consoles beginning from the P ...
's
SunSpider A browser speed test is a computer benchmark that scores the performance of a web browser, by measuring the browser's efficiency in completing a predefined list of tasks. In general the testing software is available online, located on a website, w ...
test and Google's
WebGL WebGL (Short for Web Graphics Library) is a JavaScript API for rendering interactive 2D and 3D graphics within any compatible web browser without the use of plug-ins. WebGL is fully integrated with other web standards, allowing GPU-accelera ...
test. It tied with Chrome for fastest in Microsoft's "fish aquarium" benchmark for WebGL and came last in Google's V8 performance benchmark. As a result of the speed improvements, the reviewer said "if you switched to Chrome for speed alone, you're now using the wrong browser." IE11 was also observed to use less memory with multiple tabs open than contemporary versions of Chrome and Firefox. In August 2015, SitePoint again benchmarked IE11 in its review for
Microsoft Edge Microsoft Edge is a proprietary, cross-platform web browser created by Microsoft. It was first released in 2015 as part of Windows 10 and Xbox One and later ported to other platforms as a fork of Google's Chromium open-source project: Android ...
, where Edge 12, Chrome 44 and Firefox 39 were also present. IE11 came last in
Apple An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple trees are cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, where its wild ancestor, ' ...
's JetStream test (which replaced SunSpider) and Google's Octane test (which replaces V8) but it came second in Microsoft's "fish aquarium" test, after Edge.


History

Though an internal build of IE11 was leaked on March 25, 2013, its first preview version was not formally released until June 2013, during the Build 2013 conference, along with the preview release of
Windows Server 2012 R2 Windows Server 2012 R2, codenamed "Windows Server 8.1" or "Windows Server Blue", is the seventh version of the Windows Server operating system by Microsoft, as part of the Windows NT family of operating systems. It was unveiled on June 3, 2013 a ...
and Windows 8.1. On July 25, 2013, Microsoft released the developer preview of Internet Explorer 11 for Windows 7 and
Windows Server 2008 R2 Windows Server 2008 R2 is the fifth version of the Windows Server operating system produced by Microsoft and released as part of the Windows NT family of operating systems. It was released to manufacturing on July 22, 2009, and became generall ...
. While there were no other releases of Internet Explorer, an update for Windows 7 and 8.1 was released on April 2, 2014 which added Enterprise Mode, improved developer tools, improved support for WebGL and ECMAScript 5.1. With the release of
Windows 11 Windows 11 is the latest major release of Microsoft's Windows NT operating system, released in October 2021. It is a free upgrade to its predecessor, Windows 10 (2015), and is available for any Windows 10 devices that meet the new Windows 11 ...
, Windows Server Insider Build 22463 and Windows Server Insider Build 25110, Internet Explorer is no longer preinstalled on any new devices (the application that is, while its core component is due to Microsoft's integration of IE in Windows), but users can still launch Internet Explorer from the Control Panel's browser toolbar settings on or via the Power Shell.
Microsoft Edge Microsoft Edge is a proprietary, cross-platform web browser created by Microsoft. It was first released in 2015 as part of Windows 10 and Xbox One and later ported to other platforms as a fork of Google's Chromium open-source project: Android ...
is the only preinstalled browser in the operating system. An Internet Explorer mode is however provided in Microsoft Edge to run legacy websites. On February 14, 2023 Microsoft will permanently disable IE11 on the Windows 10 Semi-Annual Channel (SAC) as part of the February 2023 Windows security update ("B" release) scheduled for February 14, 2023.


See also

*
Usage share of web browsers The usage share of web browsers is the portion, often expressed as a percentage, of visitors to a group of web sites that use a particular web browser. Accuracy Measuring browser usage in the number of requests (page hits) made by each use ...


References


External links

*
Internet Explorer Test Drive
*
IEBlog: Windows Internet Explorer Engineering Team Blog
' at
MSDN Blogs Microsoft Developer Network (MSDN) was the division of Microsoft responsible for managing the firm's relationship with developers and testers, such as hardware developers interested in the operating system (OS), and software developers developing ...
*
Internet Explorer Community Resources
' at
Microsoft Developer Network Microsoft Developer Network (MSDN) was the division of Microsoft responsible for managing the firm's relationship with developers and testers, such as hardware developers interested in the operating system (OS), and software developers developing ...
*
Internet 11 Development Status of Features
' {{Web browsers Internet Explorer 2013 software Windows 8 Windows-only freeware Windows web browsers Windows components News aggregator software